Lamp-socket.



J. DARBY.

LAMP SOCKET.

APPLICATION FILED MAR.12, 1910. LWQQQS, Patanteni 961114, 1913.

2 SHEETS-SHEEL l.

J. DARBY.

LAMP SOCKET.

APPLICATION FILED MAR. 12, 1910.

Patented Oct. 14, 1913.

2 SHEETS-SHEET 2.

5 mm wtoz (T S-JOHN DARBY, OF SUMMIT, NEW- JERSEY.

LAMP-SGKET.

oraine.

Specification of fie'tters fatent.

'lPntenteei Un t. Mi. 11913.

To all whom it mayconc'e'm':

-Be'it-kno'wn thatI, Jenn DA'RBY,:3 citizen of the United States,residing at Summit,- in the county of Union and State of New Jersey,have invented n'eiv and ose'fnl Tmp'rover'ne'nts in Lanip-Soeket-sydfwhich the following is it specification. V

The invention ='reiz1te s 'to electric ltrrnp sockets and in Certain ofits feet-uresznore especially to sockets having at double pole anddouble ore'a-k-circ-uit control although in certain of itsieaturestheinvention is a'pplioable to other kinds of sockets. v s

The ob'e'cts'of the invent-"on will in partf appear hereinefter' endwillinzpart beblovions'to those skilled *in'the art. I

The invention consists in the-novel ports," articles, constructions,arrangements, combinations and improvements herein shown and described.

The accompanying drawings referred. to herein, and forming a parthereof, illnstla'te one embodiment of theinventiomthe same serving in.connection with the-description herein to'explain the prineipiesoftheinvention. or the drawings :fFigure 1 is-n'n 'ei'eveimn" in perspectiveof a lamp socket emboriying the principles of the -invention; Fig. 2 isan elevation, with parts in section, on the line the arrows; v g is anelevation With-parts? in section "on e-line corresponding'todiner A-BofFig. 2; Fig. l'isn transverse 'see-" tio'nal' View on theIine C D ofFig. 1, 1*o )k-" ing in'the direction of the arrows, andwith' theaet'ua'ting "means for the controller, omitted for sake of 'clea'rne'ssin 'showingithe other parts Fig. "5 "is 'a fr:i'g rnent-aryeleva-Tperspective vieivs showing on anen'la17} 1ged {sc'iile the supportingste'ndirris 'for the soeket heads, the-shaft supported thereby and theooiitrol ier 'aetueting means and the eight in'der being omitted forsake of cleizrnees in 'sho'wingthe othenpnrtm) Fig. 9 isfinghnentnrysectionel view on em 'showing'the chain funnel we; smounting, end a portion of-the sinker shellfi ig". 10 is an elevationrife-socket she-Wing 2. different arrangement oftheiine end lee-(ioontz'iets and of theednclncting ioieces entire "c'onl rged sceie ihen'doo-ntrolier-oyl'inei er left hanci-cyltraine Wig. 1-1 is nneievetien,partly in section, on the iine' E F-ofi ig. 10; Fig. 12 is en endelevation o f-one oi the eontroiier cylinders; Fig. leris n irritiemtinhcor responding to 81'' 12 14 is an elev-etidni'ookinget F-igfll from theright;

15-is eperspective detaii of the commutator-strip sh-own inFig 's. 19-1%; Fig. 1*6is e/peispetive leteil of the *oommntator strip as shown ini igs. 1, 2,3,4-n'nd =5; Fig. '17

shows'tne complete-anti assembled socket.

Referring to'the accom anyin drawings, illiistratimg by Way cif'example,one-embodiinent of the invention, a socket is shown having twoopposeiiheeflsfl an'rl 26f insnlating materiel, havin g suitiiblesupporting ievioes therehetweem suoh as'thte standards 3 and "4. Thesestanriarcls are shown having their ends anigietlnnil iii-ting intorecesses in the heads '1 and 2; and fastened thereto by suitable-screws5, countersunk i'nthe heads. 1 and 2. v

The *controller is shown arranged transverel'ydf the socket and arranged'tornake u. break-ore contact (it 'tivo points in "ea'ch brenehfof thecireuit on successive 510E113 tions. The controller is ishown having twocylinders orparts 6' and? of insiiiating materiel anti never safe partsoa'rrying a 'contluot-ing "strip "coijperating with two sepsrateiipoints in onehran'c'hptt the o'iroui ig'the' other "oondliting strip onthe "otherjo'f saiii parts cooperating fwithtwo separated points in theother-branch er we mane.

The controiler' is SliOiYfilWith eentmL-nonelindrieal,'sandjprierebly-square, epe'itnres 8 and 9 which lit over itnonrylinrlrical Ffll illtll or otherwise correspondingly necl shall; 10.This shaft h rounded cnuri ll flllt'l 19, which are port ell in lapel-tlrcs lb and i l in rh 2111 {till l etuuling means for the conlroller arenro hlell and nienntcl'l hct'ween the parts ti and "l elf theeonlroller, is a ljlelent piece 20, ,litP-Yl'l with liorngl acts, nnllhaving a (,CUlllfll up re 2i fitting; the shaft ll) on which the (latentcarried. 42". llet nt lever 22 shown th 23 Adapted to press ent pieceunder snilnhle spring Pl'OliSlll't}. his ale/lent [new is, nix". allyinenntetl. and for this purpose rovider}. with 211. aperture ill whichbears no support 23 termed or angler]. por- I the slender-(l unglclflporitznsilrly St Lilli:

or tits into a recess in the head which all, i shown at 2 in Figs.

ml play ior the lleizenl l r the pawl lever, {1S will he here ilcell.

.l; 28. herring; loin" teeth zilnl. proat central aperture 529 ill inalso mounted. between the cen- .r nieznhers l) and 'Z. A pawl piece111ml. on the support 1 3.5, previously 4. I )y means of the onelinrelll. it-lnill piece 30 embraces the shaft 10 the aperture 33l'hrmigh which the passes, permitting a reciprocation. of the pawl pieceon its hearing. will tooth 3-l shown on the pawl piece on the Sl(l t0--Ward the ratchet 28 to engage one of its teeth to give a, quarter turnto the controller. The top of the pawl piece 30 is shown hooked ore'urveiil over, and likewise bifurcated shown at 4:3 in 5 and 8) toreceive the pull chitin ll, as shown in Figs. 2 and 11..

i or'l'ho purpose o 'pi'ess aing the cleltenl to the detent 'ece and toreturn the piece to Silt] ,lng position, a single w he used, illltl thes rin 311% is ..-i Carri on the support between the VM; lever and pawlpl s 3, 3 dill; 5} llllll liming the em] J) hoilieil ove :1 ch in on thenalwl. pi ,"e fll'lll the end ll on {he heel; of the homing lace mi.-Peter. in Fig. :3 e parts are wnhlerl Willi the r lolont piece .Ynlricalemilroller i'neniher f5 t0. the pawl piece en'lhrncing ll} nrxl tn the(lQiTGiElZ piece, the being next to the pawl p 'e 30 ll the toot-h i-Elof lhe pawl niljme prn i' nelnalc tin coiii'enion ling; on that side toengaee and 1k Sl ir ng lii slim'vn .rnleheo.

' '1 5 eoilen l in eniher 1 l ingp; ineehuni to lit the shaft 10 andengage Et teeth. of the ratchet 28 in lhe forvard movement and on thereturn movei'nent l0 slide past and in behind lhe next toothprepni'ziljory to the next forwardmoveinent.

lVhen the chain ll is pulled, 'lhe pawl piece 30 is rocked. on il'shearing 25.. the forweirdly pointing tooth 84 engaging one of the teethof the ratchet 2S, and thus beginning the IOlIlllUll 'ol' the sh; ll- 10and the controller members 6 and T. The rotation of lhe (,lolent pieceforces he detent lever lmcliwnrflly for about one e hth of a rotalionand this inox'rntent together with the mover; nt 015 the pawl piece 30in the opposite dir ction increases the tension on the spring; "i. Thisincreased tension serves to give it snapping, r:ictiezlly 'nr;l'untune0ns nmrcnient lo the conlroller during the latter hell of itsmovement, nliter the corner of the zletent piece has passed over thedead center. T he conchieting pieces on the (,COIlllOllGl' are 11 wingedto hrenk with the conta is or ifllilllll s ol' the circuit just at thebeginoii lhis quick movement, thus eon- (lucing to a non-rureing ghrenlz. The Cletent l'hcn llUlllS the controller firmly in the newposition, while the pawl piece is Cflll'ietlbltt'ili by the action ol'lhe spring 138, and as the tooth il of the new piece comes to the nextteeth of the ratchet, the spring will yield lo permit it slight movementelf the ratchet along the shnlt 10 to iermit lhe pawl piece loath topuss "he ru e-her tooth, and as soon as it aspzissed, the springrestores the ratchet to position in lront of thetooth 34: really for thenext actuating movement.

'lhe two parts or members 6 and. 7 of the controller nre of insulatingmaterial and are shown in Fig. 7 of 5L form representing in(:ross-sectimi a. (leuhle involnte each i'nlcr- 'rnpled at a. eon'nnondiameter. This form will he clearly ninlcrsloocl lron'i an inspecltionof Fig. 7. ln the surface of the cyhn- (her there a o'lepr ionlongitudinally of the q lintier, an element of its surjlziee, themoving; outwardly from the aperture 9 to the opposite (lop: sion Al ther dge of .he Slild and, uncle? the sail! conlrolleii Incinhcrs are twoproj cling ridges :rntl 53,

that is along snrlace then substantially having; interruptions het'mwcntheir ends silly" .tnnlxialiy rlinniclricarll y opposite each other. Ahub 65% also shown fori'z'iell' on the end 015: l'lCll of thel']'1,illl.)2'S 6 and 7. The con- (lneliing s ns which (its; into thespace heliveen the ridges angled, ever the edge elf the i183 and 5Smintroller ineinh nnil. which also connects 7 to the ring porl'ion 56 ofthe eonlnel; piece *Wl'iioh fits snn'f'lv in the lie n'essionil'k'll'llled part Sal lying on no snrlisiee the controller lnemnemher.Connect; rt Si l a narrower pert possess between the hub-' and theridges 52 and 53. From the ring- '56 the corresponding opposite narrowpart 57 connects with the opposite contact surface 58. The arrangementis such that in the rotation of the controller, the brush or contactpiece rides directly onto the surface of the contact piece withoutstriking its edge; thus giving a full and instantaneous contact at thestart and preventing ai-iyarcing, the direction of ro tation oh thecontroller being indicated by the arrowin Fig. 7. At the breaking of thecircuit, the brush snapsoverthe edge instan-' taneously, gettingthe-sameresultof'no are at the break.

Coopera ting with the conducting piece on the member 6 of the controlleris a brush or contact 72 supported on-a. binding post carried by thesocket head 1, the binding screw 71 serving to connect'the brush 72 withthe line terminal 74;. The contact 72 is turned or bent backwardly andalso curved, as shown at 73 inFigs. 1 and 2, to have a full contact anda wiping action with the conducting strip of the controller. The cor-'responding contact orbrush 78 going to'a lamp terminal, is on theopposite side of the controller and cooperates with thesame conductingstrip on the controller. This contact piece connects by means of thescrew 79' with the center contact 80 which makes contact with the lampterminal 81 when the lamp is screwed into the socket. The contact piece78 is bent backwardly at 77 in order to secure good contact-with theconducting piece on the controller. A contact piece 86 which isconnected to the other line terminal 87 is carried by a suitablesupporting piece from the socket 'head 1. This contact 86 cooperateswith the conducting piece on the part 7 of the controller. (larried onthe socket head 2, and cooperating with the same conducting piece is acontact 88, connecting through screws 89 with the screw shell 90 of thesocket which connects to the other lamp terminal in a well known manner.

The chain funnel is carried from one of the standards, and=for thispurpose the standard 3 shown with its upper end anpgled at 96 and havingan arm 97 extending outwardly to the edge of the socket. The socket headmay be recessed to receive these parts. From the end of the arm 97extends downwardly the bifurcated portion 98 into which portion theannular groove fill-of the funnel 95 is adapted to slip. in Fig. 9 theseparts are shown with the insulating lining 100 and the outside socketshell 101 in position.

In Figs. 10 to 15 inclusive, a different construction and arrangement ofthe controller members and the conducting pieces carried therebyan'd'also oi? the contacts cotipcratingtherewith is shown. In Fig. 13 acontroller member is shown adapted-to be mounted upon and to rotate witha supporting shaft in a suitable manner, as by means of the squaredaperture 111. Each of said members has a disk 112 provided with twokerfs 115 and 116 extending therethrough substantially radially. Each ofsaid controller members has a conducting strip thereon adapted to give aspring wiping action during the contact. Each conducting piececoinprises two contacting surfaces 120 and 121 standing outwardly on oneside of the disk 112. At their ends each of the contacts 120 and 121connects with angled parts 122 and 123 lying in thekerfs 115 and 116.The parts 122 and 123 are connected by the plate 12st which lies on theother face of the disk 112. The controller member is shown provided witha hub 127 and a cylindrical por-. tion 128, which in this instanceserves merely to distance the parts. f

The general connections for the contacts or brushes in the circuit maybe substantially the same as hereinbefore described. In Fig. 11 a linecontact 131 is shown carried by the socket head 1 and havingthe angledpart extending inwardly therefrom to cooperate with the part 120 of theconducting strip of the controller. A corresponding load contact 133having an angled part 192 cooperatingwith the other part 121 of theconducting strip, and vice versa during successive actuations of thecontroller. Another set of contacts 134 and 135, connecting respectivelywith the line and-load terminals in the other branch'of the circuit areshown in Fig. 10 and need not be described in detail.

The invention is not limited to the exact constructions shown, butvariations may be made in the construction within the scope of theaccompanying claims. 7

What I do claim and=desire to secure by Letters Patent, is: p

1. A lamp socket including in combination opposed socket heads, acontroller rotatably supported interi'uediately and transverselythereof, a conducting piece at one end ofthe controller, a conductingpiece at the other end of the controller, circuit con nections therefor,an actuating lever for the controller through which the controller support passes. said lever being located intermediatcly the ends of thecontroller and being pivoted at one side of said controller andextending past the controller, a fixed pawl on said lever, and-aconnection from the free end of said-' leve'r extending outside thesocket.

2. A lamp socket including in combinati-on two socket heads-arotatable-controller ed intcrmediately and transversely conductingpieceeat each end of ion 95 the controller-, a contact. piece-connectedto one branch of the line circuit supported from one of said socketheads and acontact piece connected to a lamp terminal supported on iheother socket head, the eonducting pier-e at one end of the controllermaking and breaking the circuit between said two contact pieces, acontact piece connoted to the other branch of the line circuit andanppor'ted from one of said w cket h ad a irortaet niece connected tothe other lamp terminal and supported from We other :aml et head fromthe last-mew tioned contact piece, the conducting piece at the other endof the contro ler making; and breaking the circuit between said twolastnientiened contact pieces, a actuating lever for said ohti'hlltmounted ceeentri tally o't. the controller, said lever traveling to andfro across the center of rotatnin of the controller.

A lamp socket lIlt'llltllllf); in combination a rotatable shall, aratchet. rotating therewith and slidable along the shalt, a eontrailerpiece rotatable with said shalt, a lever mounted ercrntrically to saidcontroller and having; a pawl engaging said ratchet, and means torallowing :-:aid ratchet. to more along: its sha'l't to permit the freeno oi the pawl in one direction and to cause it to actuate the ratrhetin the to direction.

t. A. lanip Sol-hot including in eonibina. tion a rotatable cont rollersha it, a. controller ria'atahle with the shall, arat'chet rotatablewith and slidable along the shaft, a' pawl mounted eccentrically of saidshalt; for actuating the ratchet when traveling in one direction, theratchet sliding on the shalt whenthe pawl passes in the oppositedireelion.

5. A lamp socket including in combination a rotatable controller shalt,a controller rotatable with the shaft, a ratchet rotatable with theshatt and slidable thereon, a pawl carrying member pivoted eceentrirallyof eaid shaft throinrh which the shal'tpalse ,s and. a spring pressingthe paul member and ratchet tragetln-zr.

(i. A. lamp socket including" in combination a rotatable controllershall, a controller rotatable therewith, a ratchet rotatable with saidshaft and slidable thereon, said ratchet being also slidable along saidshalt, a detent upon said. shaft, and a pawl carrying men'ilur mountedia-eentrirally to said shaft, the shaft passing, through an aperture insaid inel'nher, a single spring for returning said pawl carrying; memberand actuating said det'cnt, and means for yield ingly pressing saidratchet and said member together.

7. A lamp socket including in combination a shaft, a controllerrotatable therewith, a detent upon and rotatable with the shaft, aratchet wheel rotatable with the s raft and slidable therealong, a pawlcarry ing IIK-JLlJOL moving across said shaft and lorzzted between thedetent and ratchet wheel and means for yieldingly pres ratchet towardthe pawl carrying member.

8, A. .hnnp socket including in lion a shaft, a, controller membertherewith, a detent rotatable? with it. a flat pawl. 'arrying nienzberembracing til: shat'l', a. ratchet wheel. rotatable with and slidablealong said sha a spring pressing said ratchet wheel t :illtl pawlcarrying member, a second controller in mb said other devices beinglocated .1 said controller members.

9. A lamp socket including: in combination two sotdnwt heads, a standard con'nr ting said soel-cet heads, a controller meinhiia', aatandard, a detent' lever and. a pawl lever on ,nted on said bearing,and a sirqle spring acting on both the detent la r and ratchet lever.

.10. A lamp socket including in combinahavinga rigid pawl piece engagingthe ratchet wheel, and a spring acting on said ratchet. wheel in thedirection oi: the shaft.

12. A lamp socket including in coinbiaation a ahatt. a. controller pieceat either'end tliereol', a deteut and a ratchet wheel on the ha'ttintermediate the controller pieces, said ratchet being slidable on saidshaft, a Ine1nber carrying a rigid pawl tooth, embracing said shaltadiarent to said ratchet wheel, and a, spring; acting on said ratchetwheel along said shatt.

13. A lamp socket including in combination a rotatable shaft, acontroller piece at each end thereof rotatable therewith, a do tent onsaid shaft rotatable therewith, a ratchet wheel rotatable with and alsoslid able along said shaft, a pawl carrying member embracing said shaftbeside the ratchet wheel, and a spring nrgingthe' ratchet Wheel towardthe pawl carrying member, said do tent, ratchet Wheel, and pawl carryingrnerrrher being located between said controllerpieces.

14. A lamp socket including in combination a rotatable shaft, acontroller piece at each end thereof rotatable therewith, a detentonsaid shaft rotatable therewith, EL

ing the ratchet Wheel rotatable With and also slidable'along said shaft,a pawl carr ing mem ber embracing said shaft beside the ratchet Wheel,and a spring urging the ratchet Wheel toward the pawl carrying member,said spring being nested Within one of said eontroller members.

I have signed my of In testimony whereof, name to this specification inthe presence two subscribing Witnesses.

JOHN DARBY.

Witnesses J OHN D. .MORGAN, Rose MENK.

